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What is Fistula in Ano?

A fistula-in-ano is an abnormal tract or cavity with an external opening in the perianal area that is communicating with the rectum or anal canal by an identifiable internal opening. Most fistulas are thought to arise as a result of cryptoglandular infection with resultant perirectal abscess.

What are the types of Anal Fistulae?


What is difference between fistulotomy and fistulectomy (Surgical Procedure)?


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